Thus there can be at most 2 electrons in the first shell, 8 in the second shell, 8 in the third shell and 18 in each of the fourth and fifth shells. After 18 electrons have been added to the third shell, there is no combination of quantum numbers to allow for a 19 th electron within that same shell. What Is The Maximum Number Of Electrons That The Third Shell Can Hold? Remember that the first eight were placed during our trip through the third … And please if you don't … The 3rd shell can contain 18 electrons. Electrons in atoms are organized in shells whose capacities are equal to 2m², where m is an integer. The chemical properties of this group seem to indicate that the groups of 8 and 18 electrons in the fourth layer are more stable than they were in the third. The third shell is the outer valence shell, so it has 5 valence electrons. Here are all the ionization potentials for … One may also ask, why does the third shell of an atom have 8 electrons when it has the capacity of 18 electrons? Thus, the electrons are distributed as 2, 8, 8. Hence, the maximum number of electrons per shell, in order of increasing shell number (from 1 to 4) is 2,8,18,32. Although the third electron shell can hold 18 electrons, the fourth electron shell can hold 32 electrons, the fifth electron shell can hold 50 electrons, and the sixth electron shell can hold 72 electrons, once each of those electron shells gets filled with 8 electrons, the next two electrons will go into the next higher electron shell. Phosphorus has 15 total electrons. The total number of electrons in argon is 18. But then why do a lot of people say it holds 8. Also, I found that Copper has 2, 8, 18, 1 electrons per shell. In chemistry and atomic physics, an electron shell may be thought of as an orbit followed by electrons around an atom's nucleus.The closest shell to the nucleus is called the "1 shell" (also called the "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on farther and farther from the … A fifth layer is being built over an incomplete fourth shell. Sodium (Na) is the first element in the 3rd row (Period 3) in the periodic table. 2. So what is the real answer? This means that the first shell and second shells of Na atom are filled to the maximum number of electrons. The third shell can carry up 18 electrons, but it is more stable by carrying only eight electrons. 7.5k. 2 C. 3 D. 5 E. 7 C. The Maximum Number Of Electrons In Each Orbital Of The “d” Subshell In The 4th Shell Is: A. 1 B. D. 2. Electrons are not accommodated in a given shell, unless the inner shell are filled. B. How many electrons are present in M-shell of an element with atomic number 2 0? The first shell (1s) is filled with 2 electrons. But after calcium, due to the presence of d block, things change and then the third shell can hold a maximum of 18 electrons. So 2+6+10=8. Posted by 2 days ago. Each shell can only contain a given number of electrons, that corresponds to the number of elements in the corresponding period. This element is one of the transition elements that doesn't place the additional electrons in the outer shell, but in the one underneath. C. 1 8. C. 18. GCSE teaches 8 because it doesn't take into account 10 of the electrons (its a bit wtfish I know) Basically, there are 18 because each shell is divided into s, p and d sub-shells. Answer. Electrons will fill each shell completely before moving on to the next one. View Entire Discussion (2 Comments) More posts from the askscience community. The remaining 5 electrons are in its third shell (the third shell can hold up to 18 electrons). A. Thanks. Answer. The elements that have a 3rd shell as the outer shell are the the elements in period 3, where the 3s and 3p orbitals are filled to a maximum of 8 electrons. The third 'shell' is a bit more complicated but let's just say that it takes up to 8 electrons as well (for now). A. - The third shell of an atom contains just 18 electrons, not 8 electrons. s always holds 2, p always holds 6 and d always holds 6 (there's an f shell that holds 14, it goes up in 4's xD)
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